However, the effectiveness of the programmes has been questioned, and new research from the School of Business, Economics and Law at the University of Gothenburg, Sweden, points to potential negative long-term effects and a need for broader guidelines and policies.
PES programmes have been promoted as a cost-effective tool to combat climate change. However, the rather limited documentation on the effectiveness of the programmes is discouraging.
‘Human behaviour is not always predictable, and short-term positive effects may turn to negative effects in the long term,’ says Anna Nordén, economics researcher at the School of Business, Economics and Law, University of Gothenburg.
In her recently presented doctoral thesis titled Essays on Behavioral Economics and Policies for Provision of Ecosystem Services, Nordén explores the weaknesses of PES programmes and the importance of complementing them with additional measures.
The established climate targets make the measurability of PES programmes appealing – it is tempting to point to results by quantifying forests that would probably have been cut down in the absence of PES programmes. Paying landowners for abstaining from deforestation is considered the most effective programme design. However, this strategy implies that those who are already maintaining their forests are not rewarded. Nordén conducted experiments to identify the consequences of such programmes, and found that those who are already displaying the desired behaviour tend to eventually lose their willingness to protect their forests.
‘The net effect of these programmes may be negligible, meaning that the money spent may not do much to reduce emissions and combat climate change,’ says Nordén, who calls for better awareness of the effects of different reward systems.
Annika Koldenius | idw
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